How do you tune your bass? I know most of us use an electronic tuners to tune our guitar. But what about when you need to check the guitar fast and your tuner isn't handy. I do this If I know the E string is in tune. Start with the E string chime it at the 12th fret. Let it ring then chime the A string at 7th fret . Tune till in tune. Then chime the A string at 12th fret and chime the D string at 7th fret then D string at 12th fret and chime the G string at 7th fret. The guitar will be in tune.